Behold: the world's first crowdsourced hamburger. As part of McDonald's recent Mein Burger contest, German customers spent weeks pitching new sandwiches online and voting for their favorites. The first of five winners--the Pretzelnator burger (above), with ham, cheese and a pretzel-style bun--will be on sale through May 31. Sadly, there's no crowdsourced Mein Happy Meal toy.